Originally posted on the May 16, 2022 OSU VegNet Newsletter – posted By Jim Jasinski
My Extension colleague in Pickaway County sent me a quick note and picture over the weekend that the Striped Cucumber Beetle is actively searching and feeding on transplanted or emerged cucurbit crops. Given how cool the temperatures have been the past few weeks I thought it was a bit early but these past few days of 80+F have certainly activated them out of their overwintering locations and into nearby fields. Like the canary in the coal mine, this pest alert from southern growers should help growers in central and northern Ohio prepare to scout and manage transplants or emerged seedlings of cucumber, squash, zucchini, pumpkin or melon.
– Christine Gelley, Agriculture and Natural Resources Educator, Noble County OSU Extension
Poison hemlock is a concern in public right of ways, on the farm, and in the landscape!
Poison hemlock has already emerged in a vegetative state around Noble County and beyond. Soon it will be bolting and blooming on stalks 6-10 feet tall. All parts of the plant are toxic to all classes of livestock if consumed and is prevalent along roadsides, ditches, and crop field borders. It is a biennial weed that does not flower in the first year of growth but flowers in the second year. The earlier you can address poison hemlock with mowing and/or herbicide application, the better your control methods will be.
Poison hemlock is related to Queen Anne’s lace, but is much larger and taller, emerges earlier, and has purple spots on the stems. Another relative that is poisonous is wild parsnip, which looks similar to poison hemlock, but has yellow flowers. Giant hogweed is another relative of poison hemlock that is also toxic. All of these plants have umbel shaped clusters of flowers.
Originally posted on the Buckeye Yard and Garden onLine – November 2, 2021-
Author: Amy Stone
On Thursday, October 28, 2021, the Ohio Department of Agriculture (ODA) announced a quarantine to combat the spread of the Spotted Lanternfly (SLF). This BYGL Alert includes information from their release about the new quarantine.
SLF is now designated a destructive plant pest under Ohio law, which increases inspections and restricts movement of certain items from infested counties in Ohio and other states into non-infested Ohio counties. SLF can spread long distances quickly by people who move infested materials or those containing egg masses.
Currently, SLF is only known to be established in Jefferson and Cuyahoga counties. Individuals traveling from an SLF infested area with items including tree branches, nursery stock, firewood, logs, or other outdoor items that pose a high risk of spreading the pest, are asked to complete a self-inspection checklist on ODA’s website.
Recent conditions in some areas (soaked soil, fog- and dew-filled mornings, high daytime humidity) can give a different impression about the season so far than weather data at https://www.oardc.ohio-state.edu/weather1/ and various forecasts. Temperature, rainfall, and other data are collected around the clock at OSU vegetable (and other) research sites in Fremont, Celeryville, Wooster, and Piketon and have been for decades. So far in 2021, these four locations have accumulated less precipitation and more growing degree days (GDD) than their historical averages. Also, climate and weather authorities reported on June 11 that the Upper Midwest, including Ohio, is set to experience hot, droughty conditions. Most agree that a dry year is less problematic than a wet one — provided irrigation is possible. However, it can be difficult for vegetable growers to escape the unwanted effects of excessively high temperatures. A way to separate potentially minor, moderate, and severe heat stress, example effects of moderate-severe heat stress, and main strategies for mitigating heat stress during production are summarized below.
In the next 2-3 weeks, pumpkin, squash, melon and cucumber growers looking for an early crop will start direct seeding in the field or preparing seed flats for later transplanting out in the field. One of the perennial pest’s growers run into is the striped cucumber beetle which can attack seedling plants and chew them nearly to the ground. In addition to the physical damage the beetles can inflict, there is also a chance that some can transmit bacterial wilt to the plant which will prevent it from setting mature fruit.
A new strawberry disease has been found in Indiana and researchers are looking for samples to determine the extent of the problem. The disease, caused by a species of the fungus Neopestaltiopsis, has been reported in several southeastern states and other countries where it causes leafspots, fruit spots and a plant decline. In Indiana, the disease has been reported to cause a leafspot (Figure 1) and a plant decline. This disease resembles Phomopsis and upon further investigation may ultimately turn out to be Phomopsis.
Author: Joe Boggs, OSU Extension, Previously published on Buckeye Yard and Garden onLine – May 5, 2021
Concerned Ohioans are reporting their maples have stunted leaves or no leaves at all; particularly towards the top of the tree. Several issues can produce thinning maple canopies including poor site conditions, girdling roots, a vascular wilt disease, etc. However, it’s unlikely one of these issues has become so common or multiple issues have converged to produce a general widespread maple malaise throughout Ohio.
It’s more likely the common condition of thin maple canopies is a condition common to maples. Indeed, red (A. rubrum), silver (Acer saccharinum), and sugar maples (A. saccharum) in many regions of Ohio, as well as Indiana and Kentucky, have produced loads of winged seeds (samaras). The challenge is that the timing of the blooms and thus seed production varies widely between the three dominant maple species in Ohio with red maples usually the first to bloom and sugars the last.
From a consumer standpoint this could quite possibly be the worst product marketing of ALL TIME!
Roundup has been around for a long time. The active ingredient in “Roundup” is glyphosate. Many of us know “Roundup” as a non-selective herbicide – i.e. it will kill all plants it contacts.
So what’s the problem? With these products having a similar name, it’s quite possible to grab the wrong product from the shelf and thus risk harming or destroying the wrong (or all) plants.
The Solution. Always read the label! Products with similar names may have different active ingredients and therefore may not have the have the desired outcome.
Below is a general guide to the different Roundup products available to consumers. Note that for many of these products there may be ready to use (RTU) and/or concentrate formulations available with different ratios or percentages of the same active ingredients. Additional products are marketed for use in southern turfgrass.
Don’t be fooled by products that have a similar name . . . read the label!